I am deep in this analysis right now. I want a little more out of my 13, i did intake, LT/Exhaust and tune and it just was not enough on my 10 6.2.
Roush told me I could have it installed by an ASE certified installer and they will sign off on the 3rd party warranty. I did hear the same thing that the 3rd party would not warranty stage 2. Not a big deal to me as it gives me an upgrade path a little later down the road.
What I like about the Roush path over Whipple is I have a local installer I trust much more than any of the Roush dealers in the Denver metro area and it gives me the option of having them do it.
My thought on the supercharger is 1, I miss the whine of my old GT500, and 2, the truck is as fast or slightly faster than most cars. I think the SC would make it noticeably faster than most cars. There will always be cars that are faster but the odds of having to deal with them in traffic reduce dramatically. My basic axiom is I don't care how fast your car is, there is always something out there you will run into faster. You just need to be faster than most
Dennis
